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