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