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