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