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