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