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