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