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