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