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