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