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