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