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