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