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