One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,5)(3,6,7,8)(18,23)(19,27)(21,29)(25,31)(26,30)(28,32)(2,5)(6,8)(9,10)(11,14)(12,13)(15,16)(17,18)(19,20)(21,30)(22,26)(23,29)(24,25)(27,32)(28,31) involution — undirected(10,13)(14,16)(17,19,22,25)(18,24,26,20)(21,31,29,27)(23,28,30,32)(1,3,4,7)(2,6,5,8)(9,11)(10,14)(12,15)(13,16)(17,20,22,24)(18,25,26,19)(21,28,29,32)(23,31,30,27)(11,15)(14,16)(18,26)(20,24)(23,30)(28,32) 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.