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