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