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