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)(17,18,21,26)(19,23,22,25)(20,28,29,24)(27,32,30,31)(1,2)(3,4)(5,6)(7,8)(9,11,13,12)(10,14,15,16)(17,19,21,22)(18,23,26,25)(20,27,29,30)(24,31,28,32)(6,8)(10,15)(14,16)(17,20,21,29)(18,24,26,28)(19,27,22,30)(23,31,25,32)(2,4)(9,12,13,11)(10,16,15,14)(18,25)(19,22)(23,26)(24,32)(27,30)(28,31)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.