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