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