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