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