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