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