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