  Five duality transformations are unveiled for the quantum XYZ model with
arbitrary spin $s$ in one spatial dimension. The presence of these duality
transformations drastically reduces the entire ground-state phase diagram to
two {\it finite} regimes - the principal regimes, with all the other ten
regimes dual to them. Combining with the determination of critical points from
the conventional order parameter approach and/or the fidelity approach to
quantum phase transitions, we are able to map out the ground-state phase
diagram for the quantum XYZ model with arbitrary spin $s$. This is explicitly
demonstrated for $s=1/2,1,3/2$ and 2. As it turns out, all the critical points,
with central charge $c=1$, are self-dual under a respective duality
transformation for half-integer as well as integer spin $s$. However, in the
latter case, the presence of the so-called symmetry protected topological
phase, i.e., the Haldane phase, results in extra lines of critical points with
central charge $c=1/2$, which is not self-dual under any duality
transformation.
