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