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