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