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)(11,16)(12,13)(14,15)(18,20)(21,24)(25,26,29,30)(27,28,31,32)(9,11)(10,13)(12,14)(15,16)(17,18,22,20)(19,24,23,21)(25,27,29,31)(26,28,30,32)(10,15)(11,12)(17,19,22,23)(18,21,20,24)(25,28)(26,27)(29,32)(30,31)(1,2)(3,5)(4,6)(7,8)(9,12,14,11)(10,13,15,16)(17,20,22,18)(19,21,23,24)(25,27)(26,28)(29,31)(30,32)(1,3,4,7)(2,5,6,8)(9,13)(10,12)(11,15)(14,16)(17,21)(18,23)(19,20)(22,24)(25,26)(27,28)(29,30)(31,32)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.