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