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