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