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