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