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