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