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