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