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