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