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