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