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