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