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