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