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