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