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