One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(3,4)(5,6)(7,9)(8,10)(11,12)(13,17)(14,16)(15,18)(19,20,23,24)(21,25,28,32)(22,29,31,26)(27,30,34,33)(3,5)(4,8)(6,9)(7,10)(11,13)(12,15)(14,18)(16,17)(19,21,23,28)(20,25,24,32)(22,30,31,33)(26,27,29,34)(3,6,7,8)(4,5,9,10)(12,16)(15,17)(19,22)(20,26)(21,27)(23,31)(24,29)(25,33)(28,34)(30,32)(4,9)(5,10)(13,18)(15,17)(19,20,23,24)(21,25,28,32)(22,26,31,29)(27,33,34,30)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.