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