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)(19,27)(20,24)(21,25)(22,31)(23,29)(26,28)(30,32)(1,3,5,4)(2,6,8,7)(9,11)(10,14)(12,15)(13,16)(17,19)(18,23)(20,28)(21,29)(22,30)(24,31)(25,27)(26,32)(1,3,5,4)(2,7,8,6)(9,12,13,10)(11,15,16,14)(17,19,28,30,21,29,22,20)(18,24,31,23,25,32,26,27)(1,3,5,4)(2,7,8,6)(11,16)(14,15)(17,20,28,19,21,30,22,29)(18,23,31,32,25,27,26,24)(1,4,5,3)(2,7,8,6)(18,25)(23,27)(24,32)(26,31)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.