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