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