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