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