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