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