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