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