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