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