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