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