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