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)(11,15)(12,14)(13,16)(17,18,21,22)(19,20,23,24)(25,26,28,30)(27,29,31,32)(2,5)(7,8)(9,11,13,12)(10,14,16,15)(18,22)(20,24)(1,3,6,4)(2,7,5,8)(9,11,13,12)(10,15,16,14)(17,18,21,22)(19,20,23,24)(25,26)(27,29)(28,30)(31,32)(1,4,6,3)(2,8,5,7)(9,12,13,11)(10,14,16,15)(17,19,21,23)(18,20,22,24)(1,5,6,2)(3,8,4,7)(9,10)(11,15)(12,14)(13,16)(17,20)(18,23)(19,22)(21,24)(25,27,28,31)(26,29,30,32)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.