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