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