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