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