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