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