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