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