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