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