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