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)(11,15)(12,16)(13,14)(17,18,22,25)(19,26,28,31)(20,24,21,29)(23,30,32,27)(1,3)(2,6)(4,7)(5,8)(10,14)(11,12) involution — undirected(9,10)(11,16)(12,15)(13,14)(17,19,22,28)(18,23,25,32)(20,27,21,30)(24,31,29,26)(1,2,5,4)(3,7,8,6)(9,11,13,12)(10,15,14,16)(17,20,22,21)(18,24,25,29)(19,27,28,30)(23,31,32,26)(1,4,5,2)(3,7,8,6)(9,12,13,11)(10,15,14,16)(19,28)(23,32)(26,31)(27,30)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.