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