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