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