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