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