  This article presents a machinery based on polyhedral products that produces
faithful representations of graph products of finite groups and direct products
of finite groups into automorphisms of free groups $\rm Aut(F_n)$ and outer
automorphisms of free groups $\rm Out(F_n)$, respectively, as well as faithful
representations of products of finite groups into the linear groups $\rm
SL(n,\mathbb Z)$ and $\rm GL(n,\mathbb Z)$. These faithful representations are
realized as monodromy representations.
