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