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)(11,15)(12,14)(13,16)(17,18,21,23)(19,22,20,24)(25,26,28,30)(27,31,32,29)(1,3,6,5)(2,7,8,4)(9,11,14,13)(10,15,12,16)(17,19,21,20)(18,22,23,24)(2,8)(3,5)(9,10,14,12)(11,16,13,15)(17,20,21,19)(18,22,23,24)(1,4,6,7)(2,3,8,5)(9,12,14,10)(11,15,13,16)(17,18)(19,24)(20,22)(21,23)(25,27,28,32)(26,29,30,31)(1,5,6,3)(2,7,8,4)(9,13,14,11)(10,15,12,16)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.