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