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