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