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