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