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