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