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