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