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