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