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