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