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