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