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