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