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)(19,28)(20,29)(21,25)(22,26)(23,27)(24,31)(30,32)(2,5)(6,8)(9,10)(11,14)(12,13)(15,16)(17,19)(18,24)(20,27)(21,31)(22,29)(23,30)(25,32)(26,28) involution — undirected(10,13)(14,16)(17,20,23,24)(18,19,27,30)(21,32,22,28)(25,29,26,31)(1,3,4,7)(2,6,5,8)(9,11)(10,14)(12,15)(13,16)(17,21,23,22)(18,25,27,26)(19,29,30,31)(20,32,24,28)(11,15)(14,16)(19,30)(20,24)(28,32)(29,31) 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.