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