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