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