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