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