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