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