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