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