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