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