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