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