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