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