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