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