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)(19,24,31,40)(20,33)(21,28)(22,26)(23,27)(25,35)(29,43,45,47)(30,39,32,38)(34,42)(36,41)(37,44,48,46)(1,2,4,6,5,8,11,13)(3,7,10,12,9,14,15,16)(17,19)(18,24,27,40)(20,29)(21,30)(22,32)(23,31)(25,37,42,48)(26,38,28,39)(33,43,41,47)(34,44)(35,46)(36,45)(1,3,5,9)(2,7,8,14)(4,10,11,15)(6,12,13,16)(17,20,23,36)(18,25,27,42)(19,29,31,45)(21,35,22,34)(24,37,40,48)(26,33,28,41)(30,46,32,44)(38,43,39,47)(3,9)(7,14)(10,15)(12,16)(17,21,23,22)(18,26,27,28)(19,30,31,32)(20,34,36,35)(24,38,40,39)(25,41,42,33)(29,44,45,46)(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.