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