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