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