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