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