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