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