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