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