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