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