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