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