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