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