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