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