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