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