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)(19,22)(20,30)(21,25)(23,26)(24,29)(27,32)(28,31) involution — undirected(1,2)(3,7)(4,8)(5,6)(10,13)(14,16)(17,19)(18,24)(20,27)(21,28)(22,26)(23,29)(25,32)(30,31) involution — undirected(9,10)(11,14)(12,13)(15,16)(17,20,23,21)(18,25,26,30)(19,27,29,28)(22,31,24,32)(9,11,12,15)(10,14,13,16)(17,19)(18,24)(20,27)(21,28)(22,26)(23,29)(25,32)(30,31)(1,3,5,4)(2,7,6,8)(17,21,23,20)(18,25,26,30)(19,28,29,27)(22,31,24,32)(1,4,5,3)(2,8,6,7)(17,22,23,24)(18,19,26,29)(20,31,21,32)(25,27,30,28)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.