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