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