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