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