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