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)(17,18,23,29,22,20,21,25)(19,26,30,31,28,24,27,32)(1,3,5,4)(2,6,8,7)(9,11,14,15,12,16,13,10)(17,19,23,30,22,28,21,27)(18,24,29,32,20,26,25,31)(10,11)(13,14)(15,16)(17,20,22,18)(19,26,28,24)(21,25,23,29)(27,31,30,32)(1,4,5,3)(2,7,8,6)(17,21,22,23)(18,25,20,29)(19,27,28,30)(24,31,26,32)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.