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