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