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