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