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