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