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