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