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