One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,11)(4,9)(5,8)(6,10)(7,13)(12,16)(14,15)(17,18)(19,27,30,23)(20,24)(21,26)(22,25)(28,45,46,37)(29,43,34,38)(31,48,47,39)(32,41)(33,40)(35,44)(36,42)(1,3,6,14)(2,7,10,16)(4,12,5,13)(8,15,9,11)(17,19,22,30)(18,23,25,27)(20,31,33,47)(21,34,36,29)(24,39,40,48)(26,43,42,38)(28,35,46,32)(37,44,45,41)(2,8)(3,12)(4,5)(9,10)(11,15)(13,14)(17,20,22,33)(18,24,25,40)(19,28,30,46)(21,35,36,32)(23,37,27,45)(26,44,42,41)(29,47,34,31)(38,48,43,39)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.