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