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