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