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