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