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