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