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