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