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