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