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