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