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