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