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