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