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