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