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