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