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