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)(11,16)(12,14)(13,15)(17,18,22,21)(19,24,23,20)(25,26,29,32)(27,30,28,31)(2,5)(7,8)(9,11)(10,15)(12,16)(13,14)(25,27,29,28)(26,30,32,31)(1,3,6,4)(2,7,5,8)(9,10,14,12)(11,16,13,15)(17,19)(18,20)(21,24)(22,23)(25,26)(27,30)(28,31)(29,32)(1,4,6,3)(2,7,5,8)(9,12,14,10)(11,16,13,15)(17,20,22,24)(18,23,21,19)(1,5,6,2)(3,8,4,7)(9,13,14,11)(10,15,12,16)(17,21,22,18)(19,24,23,20)(25,28,29,27)(26,31,32,30)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.