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