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