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