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