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