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