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