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)(19,20)(21,24)(22,30)(23,26)(25,32)(27,29)(28,31)(34,36)(35,40)(38,46)(45,48) involution — undirected(1,2)(3,7)(4,12)(5,6)(8,13)(9,10)(11,16)(14,15)(17,19,23,24)(18,20,26,21)(22,31,32,27)(25,29,30,28)(33,34,39,36)(35,42,40,37)(38,41,46,44)(43,48,47,45)(2,6)(7,10)(8,12)(14,16)(17,20,23,21)(18,24,26,19)(22,28,32,29)(25,31,30,27)(33,35)(34,37)(36,42)(38,43)(39,40)(41,45)(44,48)(46,47)(1,2)(3,10)(4,8)(5,6)(7,9)(11,16)(12,13)(14,15)(17,18)(19,20)(21,24)(22,25)(23,26)(27,28)(29,31)(30,32)(33,36,39,34)(35,42,40,37)(38,44,46,41)(43,48,47,45)(1,3)(2,7)(4,11)(5,9)(6,10)(8,14)(12,16)(13,15)(17,21,23,20)(18,19,26,24)(22,29,32,28)(25,27,30,31)(33,37,39,42)(34,40,36,35)(38,45,46,48)(41,47,44,43)(1,4,5,13)(2,8,6,12)(3,11,9,15)(7,14,10,16)(17,22,23,32)(18,25,26,30)(19,27,24,31)(20,28,21,29)(33,38)(34,41)(35,43)(36,44)(37,45)(39,46)(40,47)(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.