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