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