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)(11,16)(18,21)(19,23)(25,26,30,28)(27,32,29,31)(2,5)(6,8)(9,10,13,14)(11,12,16,15)(17,18,20,21)(19,24,23,22)(25,26,30,28)(27,32,29,31)(3,7)(6,8)(10,14)(12,15)(17,18)(19,24)(20,21)(22,23)(25,27,30,29)(26,31,28,32)(1,2)(3,8)(4,5)(6,7)(9,11)(10,15)(12,14)(13,16)(17,18)(19,24)(20,21)(22,23)(25,28,30,26)(27,32,29,31)(1,3,4,7)(2,6,5,8)(9,12,13,15)(10,16,14,11)(17,19)(18,22)(20,23)(21,24)(25,29,30,27)(26,32,28,31)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.