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