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