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