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