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