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