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