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