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