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