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