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