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)(17,18,23,27)(19,28,30,45)(20,32,21,25)(22,36,37,26)(24,38,41,31)(29,44,34,43)(33,42,35,47)(39,46,40,48)(9,10)(11,14)(12,13)(15,16)(17,19,22,31,23,30,37,38)(18,24,26,28,27,41,36,45)(20,29,33,46,21,34,35,48)(25,39,42,43,32,40,47,44)(2,5)(6,8)(10,13)(14,16)(17,20)(18,25)(19,29)(21,23)(22,33)(24,39)(26,42)(27,32)(28,43)(30,34)(31,46)(35,37)(36,47)(38,48)(40,41)(44,45) involution — undirected(1,3,4,7)(2,6,5,8)(10,13)(14,16)(17,21,23,20)(18,25,27,32)(19,29,30,34)(22,35,37,33)(24,40,41,39)(26,42,36,47)(28,44,45,43)(31,46,38,48)(9,11,12,15)(10,14,13,16)(19,30)(20,21)(24,41)(25,32)(28,45)(31,38)(33,35)(42,47)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.