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