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)(17,18,21,23)(19,20,22,24)(25,26,29,32)(27,31,28,30)(2,5)(6,7)(9,10,14,12)(11,15,13,16)(17,18)(19,20)(21,23)(22,24)(1,2)(3,6)(4,5)(7,8)(9,11,14,13)(10,15,12,16)(17,19,21,22)(18,20,23,24)(25,27,29,28)(26,30,32,31)(1,3,4,8)(2,6,5,7)(9,12,14,10)(11,16,13,15)(17,18)(19,20)(21,23)(22,24)(25,27,29,28)(26,30,32,31)(1,2)(3,7)(4,5)(6,8)(9,13,14,11)(10,16,12,15)(17,20)(18,22)(19,23)(21,24)(25,28,29,27)(26,31,32,30)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.