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