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