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