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