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