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