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