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