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