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