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