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