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