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