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