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