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