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