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