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