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