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