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