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