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