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