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