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