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