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