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