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