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