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