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