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