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