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