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)(17,18,22,23,21,25,19,26)(20,28,27,24,30,31,29,32)(1,2)(3,7)(4,8)(5,6)(9,11,12,15)(10,13,14,16)(17,19,21,22)(18,23,25,26)(20,29,30,27)(24,31,32,28)(1,3,5,4)(2,7,6,8)(11,15)(13,16)(17,20,21,30)(18,24,25,32)(19,27,22,29)(23,28,26,31)(1,4,5,3)(2,7,6,8)(18,25)(19,22)(24,32)(27,29)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.