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