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