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