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