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