  Co$_3$Sn$_2$S$_2$, a Weyl semimetal that consists of layers of Kagome
lattices, transitions from a high-temperature paramagnetic phase to a
low-temperature ferromagnetic phase below 177 K. The phase transition occurs
through an intermediate non-trivial magnetic phase, the so-called "A"-phase
just below the Curie temperature. The "A"-phase was earlier linked with a
competing anti-ferromagnetic phase, a spin-glass phase and certain indirect
measurements indicated the possibility of magnetic Skyrmions in this phase. We
have imaged the magnetic domain structure in a single crystal of
Co$_3$Sn$_2$S$_2$ at different temperatures, magnetic fields and field-angles
by magnetic force microscopy. At low temperatures, we observed stripe domains
indicating presence of uniaxial anisotropy. Above 130 K, the domain walls
become mobile and they tend to align relatively easily when the magnetic field
is increased along the $c$-axis than in the $a-b$ plane. Our detailed study of
field-dependent domain dynamics reveal that the anomalous nature of the phase
transition just below $T_c$ is dominantly governed by domain wall motion.
