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