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