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