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