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