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