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