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