  Context. The study of young solar type stars is fundamental for a better
understanding of the magnetic activity of the Sun. As a planet in transit
crosses in front of its host star, a darkspot on the stellar surface may be
occulted, causing a detectable variation in the light curve. Kepler-63 is a
young solar-like star withan age of only 210 Myr that exhibit photometric
variations compatible with spot signatures. Since its orbiting planet is in an
almostpolar orbit, different latitudes of the star can be probed by the method
of spot transit mapping. Methods. A total of 150 transits of Kepler-63b were
observed in the short cadence light curve, corresponding to a total duration of
about 4 years. Each transit light curve was fit by a model that simulates
planetary transits and allows the inclusion of starspots on the surface of the
host star. This enables the physical characterisation of the spots size,
intensity, and location. We determine the spot position in a reference frame
that rotates with the star, and thus obtain the latitudinal distribution of the
spots. Results. A total of 297 spots were fit and their sizes, intensities, and
positions determined. The latitude distribution of spots exhibits a bimodality
with a lack of spots around 34{\deg}. The high latitude spots dominate the
magnetic cycle of Kepler-63. For a mean stellar rotation period of 5.400d, 59
spots were found at approximately the same longitude and latitude on a later
transit. Conclusions. Due to the geometry of the Kepler-63 system, we were able
to build a starspot "butterfly diagram". It was also possible to infer
Kepler-63 differential rotation from the presence of spots at different
latitudes. This star was found to rotate almost rigidly with a period of 5.400d
and relative shear close to 0.01% for latitudes less than 34{\deg}, whereas the
high latitudes do not follow a well behaved pattern.
