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