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