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