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