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