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