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