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