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