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