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