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