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