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