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