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