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