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