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