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