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