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