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