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