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