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