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