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