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