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