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