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