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