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