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