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