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