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)(17,18,23,21)(19,28,30,24)(20,26,31,25)(22,32,29,27)(9,10)(11,15)(12,16)(13,14)(17,19)(18,24)(20,22)(21,28)(23,30)(25,32)(26,27)(29,31) involution — undirected(2,7)(3,8)(17,20,23,31)(18,25,21,26)(19,29,30,22)(24,27,28,32)(1,3)(2,4)(5,7)(6,8)(17,20)(18,26)(19,22)(21,25)(23,31)(24,27)(28,32)(29,30) involution — undirected(1,4,6,5)(2,8,7,3)(9,11,13,12)(10,15,14,16)(17,21,23,18)(19,28,30,24)(20,25,31,26)(22,32,29,27)(1,5,6,4)(2,3,7,8)(9,12,13,11)(10,16,14,15)(17,22)(18,27)(19,20)(21,32)(23,29)(24,26)(25,28)(30,31)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.