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