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