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