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