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