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