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