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