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