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