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