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