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