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