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