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