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