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