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