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