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