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