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