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