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