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