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