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