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