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