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