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