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)(18,22)(19,23)(24,27)(25,31)(26,30)(28,32)(1,2)(3,8)(4,7)(5,6)(10,11)(12,13)(17,18,21,22)(19,23,26,30)(20,27,29,24)(25,32,28,31)(9,11,14,10)(12,15,13,16)(17,19)(18,23)(20,28)(21,26)(22,30)(24,32)(25,29)(27,31)(1,3,5,4)(2,7,6,8)(9,12,14,13)(10,15,11,16)(17,20)(18,24)(19,25)(21,29)(22,27)(23,31)(26,28)(30,32)(1,4,5,3)(2,7,6,8)(9,13,14,12)(10,15,11,16)(20,29)(24,27)(25,28)(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.