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