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