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