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