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