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