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