One vertex per element, one color per generator, with an edge from x to x·s.
(5,6,7,8)(9,10)(11,12)(13,15)(14,16)(17,18)(19,22)(20,23)(21,25)(24,28)(26,31)(27,29)(30,32)(2,4)(9,11)(10,14)(12,15)(13,16)(17,19)(18,22)(20,27)(21,26)(23,29)(24,30)(25,31)(28,32) involution — undirected(1,2,3,4)(9,12,13,14)(10,11,15,16)(18,23)(20,28)(22,29)(24,25)(27,32)(30,31)(10,15)(11,16)(18,23)(19,26)(20,28)(22,30)(24,25)(29,31) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.