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