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