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