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