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