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