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