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