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