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