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