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