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