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