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