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