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